Flat supporting frame for cups



FIG. 1 is a perspective view of a flat supporting frame for cups showing my new design

FIG. 2 is a front elevational view thereof

FIG. 3 is a rear elevational view thereof.

FIG. 4 is a left side view thereof

FIG. 5 is a right side view thereof

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a flat supporting frame for cups, as shown and described. 